#645AA2#645AA2

#645AA2 is a mid, moderate blue. Relative luminance 0.126; OKLCH L 51.0% C 0.112 H 288.1°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#645AA2
RGB	rgb(100, 90, 162)
HSL	hsl(248, 29%, 49%)
HSV	hsv(248, 44%, 64%)
CMYK	cmyk(38.3%, 44.4%, 0%, 36.5%)
CIE-LAB	lab(42.20, 21.91, -37.70)
CIE-LCH	lch(42.20, 43.60, 300.16°)
OKLab	oklab(51.04% 0.0348 -0.1062)
OKLCH	oklch(51.04% 0.112 288.1)
XYZ	xyz(15.4315, 12.6298, 35.8002)
Luminance	0.1263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AA2 #98A25A

analogous

#5A74A2 #645AA2 #885AA2

triadic

#645AA2 #A2645A #5AA264

tetradic

#645AA2 #A25A74 #98A25A #5AA288

square

#645AA2 #A25A74 #98A25A #5AA288

split-complementary

#645AA2 #A2885A #74A25A

monochromatic

#332E53 #4C447B #645AA2 #8880B9 #ADA8CF

Accessibility & contrast

On white

5.96

#645AA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#645AA2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AA2

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AA2	#FFFFFF	#000000	##FFFFFF
##645AA2	1.00	5.96	3.53	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4165A5

Deuteranopia (green-blind)

#4162A0

Tritanopia (blue-blind)

#536876

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #645aa2;
/* rgb */ color: rgb(100, 90, 162);
/* oklch */ color: oklch(51.0% 0.112 288.1);

Tailwind

colors: {
  custom: {
    50: '#9388be',
    500: '#645aa2',
    950: '#000000',
  },
}

SCSS

$custom: #645aa2;
$custom-light: #9388be;
$custom-dark: #000000;

JSON

{
  "hex": "#645aa2",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 162
  },
  "hsl": {
    "h": 248.333,
    "s": 28.571,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5104,
    "c": 0.11178,
    "h": 288.1
  },
  "luminance": 0.1263
}

Semantic roles & 50–950 ramp

primary

#645AA2

secondary

#B8BD9B

accent

#C563B7

background

#F9F8FB

surface

#F1F0F7

border

#CBCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #645AA2

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →